"Fedora 18 will be released at around the same time as Windows 8, and as previously discussed all Windows 8 hardware will be shipping with secure boot enabled by default. [...] We've been working on a plan for dealing with this. It's not ideal, but of all the approaches we've examined we feel that this one offers the best balance between letting users install Fedora while still permitting user freedom." Wait for it... "Our first stage bootloader will be signed with a Microsoft key."

One shouldn't have to disable UEFI secure boot in the first place for alternate operating systems. There wouldn't be a complaint if the spec/certification required owners be able to change their keys to non-microsoft vendors....and of course the freedom to do it on ARM as well.